1.

In a radioactive substance at \[t=0\], the number of atoms is \[8\times {{10}^{4}}\]. Its half life period is 3 years. The number of atoms \[1\times {{10}^{4}}\] will remain after interval [MP PMT/PET 1988]

A.            9 years                                    
B.            8 years
C.            6 years                                    
D.            24 years
Answer» B.            8 years


Discussion

No Comment Found

Related MCQs